test: adjust the ListView.ScrollIntoView sample to use items with var…

…ying heights
jeromelaban · Apr 11, 2024 · cbf30bd · cbf30bd
1 parent 2002cc0
commit cbf30bd
Show file tree

Hide file tree

Showing 2 changed files with 23 additions and 10 deletions.
diff --git a/src/SamplesApp/UITests.Shared/Windows_UI_Xaml_Controls/ListView/ListView_BringIntoView.xaml b/src/SamplesApp/UITests.Shared/Windows_UI_Xaml_Controls/ListView/ListView_BringIntoView.xaml
@@ -16,12 +16,18 @@
 			</StackPanel>
 		</DataTemplate>
 	</UserControl.Resources>
-
-    <Grid>
-		<ListView x:Name="myList"
-				  ItemsSource="{Binding [SampleItemsMed]}"
-				  ItemTemplate="{StaticResource ListItemTemplate}"/>
-		<Button Content="Bring into view"
-				Click="BringIntoView" />		
-    </Grid>
+
+	<StackPanel>
+		<StackPanel Orientation="Horizontal">
+			<NumberBox x:Name="nb" Minimum="0" SmallChange="1" />
+			<StackPanel>
+				<TextBlock Text="Leading" />
+				<CheckBox x:Name="chkBox" />
+			</StackPanel>
+			<Button Content="Bring into view" Click="BringIntoView" />
+		</StackPanel>
+		<Grid Height="400">
+			<ListView x:Name="myList" ItemTemplate="{StaticResource ListItemTemplate}" />
+	    </Grid>
+	</StackPanel>
 </UserControl>
diff --git a/...amplesApp/UITests.Shared/Windows_UI_Xaml_Controls/ListView/ListView_BringIntoView.xaml.cs b/...amplesApp/UITests.Shared/Windows_UI_Xaml_Controls/ListView/ListView_BringIntoView.xaml.cs
@@ -1,4 +1,6 @@
-using Uno.UI.Samples.Controls;
+using System;
+using System.Linq;
+using Uno.UI.Samples.Controls;
 using Microsoft.UI.Xaml.Controls;
 using SamplesApp.Windows_UI_Xaml_Controls.Models;
 using Microsoft.UI.Xaml;
@@ -14,13 +16,18 @@ public sealed partial class ListView_BringIntoView : UserControl
 		public ListView_BringIntoView()
 		{
 			this.InitializeComponent();
+
+			var random = new Random(42);
+			// using newlines to vary the height of each item
+			myList.ItemsSource = Enumerable.Range(0, 100).Select(i => $"item {i}" + new string('\n', random.Next(0, 5))).ToArray();
 		}
 
 		public void BringIntoView(object sender, RoutedEventArgs e)
 		{
 			var list = (Microsoft.UI.Xaml.Controls.ListViewBase)this.myList;
 
-			list.ScrollIntoView(list.SelectedItem, ScrollIntoViewAlignment.Leading);
+			var alignment = (chkBox.IsChecked ?? false) ? ScrollIntoViewAlignment.Leading : ScrollIntoViewAlignment.Default;
+			list.ScrollIntoView(list.ItemFromIndex((int)nb.Value), alignment);
 		}
 	}
 }